/* 空闲课时查询面板 */
#free-panel .row > div {
  display: flex;
  align-items: center;
}
#free-panel label {
  margin-bottom: 0;
  white-space: nowrap;
}
#free-panel input {
  margin-left: 0.5rem;
}

/* 结果表格固定表头 */
#free-results table thead th {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1;
}

/* 结果表格滚动时内容居中 */
#free-results table th,
#free-results table td {
  vertical-align: middle;
}
